Drive cog bearings | FerrariChat

Drive cog bearings

Discussion in 'Mondial' started by srephwed, Jan 5, 2019.

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  1. srephwed

    srephwed F1 Veteran
    Silver Subscribed

    Apr 29, 2012
    6,469
    street,md
    Full Name:
    fred brown
    #1 srephwed, Jan 5, 2019
    We always talk of the replacement of the tensioner bearings when doing belts. Are the bearings for the drive cogs lubed by engine oil and do not require the frequent replacement?
     
  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    25,123
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #2 Steve Magnusson, Jan 5, 2019
    On Mondiali (?), the inner cam drive ball bearing is lubricated by the engine oil and very lightly-loaded so almost never needs replacement before a total engine rebuild is required. The outer ball bearing is grease lubricated, and moderately-loaded, so replacing at 60K~90K miles could be expected IMO (and/or the lipseal could need refreshment -- maybe even sooner as time is harder on a elastomeric material versus a steel material, and it's been some time since birth for all Mondial).
     
  3. EXCELSE

    EXCELSE Karting

    Nov 27, 2014
    105
    Belgium
    Full Name:
    Scuderia Brughia
    #3 EXCELSE, Jan 6, 2019
    If car has not been driven for a very long time like the one I purchased, outer bearings had to be replaced even at 30k miles.
     

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